Unloading extractor



y 26, 1953 J. B. SANDO EI'AL 2,639,811

UNLOADING EXTRACTOR Filed June 1 1 48 V 2 Sheets-Sheet 1 NVENTOR. JOSEPH B. SANDO BxYlALLACE F. GAYRING fli'tortys \v N A m. n. E in May 26, 1953 J. B, SANDO ETAL UNLOADING EXTRACTOR 2 Sheets-Sheet 2 Filed June 18, 1948 BY M (53 7 fitterays v INVENTORS JOSEPH B SANDO WALLACE F. GAYRING Patented May 26, 1953 UNITED s'rA'rss PATENT OFFICE 2,639,811 UNLOADING EXTRACTOR Joseph B. Sando, Syracuse, and Wallace F. Gayring, Minoa, N. Y., assignors to The Prosperity Company, Inc., Syracuse, N. Y., a corporation of New York Application June 18, 1948, Serial No. 33,816

3 Claims.

This invention relates to centrifugal hydroextractors, such as are used in laundering and dry cleaning establishments, and has for its object a construction by which the containers for" the articles from which the Water is being extracted move outwardly under the action of the centrifugal force and frictionally clutch peripheral walls of the containers to the circumferential walls of the basket which is rotated by power.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views. V

Figure 1 is a sectional view through an ex- Figure '7 is a fragmentary detail sectional view of the actuating mechanismomitted in Figure 1.

The extractor, with the exception of the construction and mounting of the containers, is subugal extractor used in laundering and dry cleaning establishments. It comprises a base I, a stationary frame, a curb 2 having an upright imperforate cylindrical curb wall 3 a cylindrical rotatable basket 4 having its outer perforated wall spaced from the curb wall 3 of the frame 2,

containers 5, which are complemental segments of a cylinder, rest on the bottom of the basket, and are removable and replaceable through the open top of the basket, and an opencontainers being mounted to shift radially under the action of the centrifugal force and, in so shifting, bring the lower portions or areas of the outer peripheral walls, in frictional clutchin contact with the lower cylindrical wall of the basket, and resilient means for resisting the outward movement of the containers under the centrifugal force and returning them out of frictional clutching engagement when the rotative parts stop.

The curb 2 is suitably suspended from the base I by spring suspension means I, of well known construction, to dampen vibration during the centrifugal action. The basket 4 is rotated .by an upright axial spindle 8 journalledin the bearing 9 supported by the curb 2, the spindle being coupled at It to the apex of a coaxial conical projection H on the bottom of the basket 4. The containers 5 are here shown as semicylindrical and having opposing radially or diametrically extending walls 12 which are opposed to each other, these walls being formed "t0 enclose a conical recess conforming to the conical portion H of the bottom of the basket 4. The peripheral walls of the containers are perforated. I

The containers are hinged together at it alon the upper edges of their diametrically extending walls 12, and swing outwardly under the action of the centrifugal force about the axis of the hinge it, this action bringing the lower areas of the peripheral Walls of the containers in frictional contact with the lower area of the inner face of the cylindrical wall of the basket 4, so that the centrifugal force is transmitted,

for the most part, to the containers through this frictional contact. Initially upon starting, the

- rotary motion is transferred to the containers ,35 stantially the same as in any standard centrif- 5 from the basket 4 through the frictional contact of the rollers I5 on the bottoms of the containers 5, with the bottom wall of the basket 4 and by the frictional contact between the upper ends of the semi-cylindrical recesses in the diametrically extending walls I2 of the containers 5 and the apex of the conical projection ll of the bottom of the basket; and finally when the centrifugal force is developed, through the frictional contact of the peripheral walls of the containers 5 and the inner faces of the walls of the'basket 4. The containers rest on the bottom of the basket and hence, the centrifugal force is initially transmitted through the con- ,tact between the bottoms of the containers and ing 6 confined by the wall 3 of the frame, the

the bottom of the basket. The confronting circumferential and peripheral walls of the containers and basket are separated a slightly greater distance at the bottom ends of the basket and the containers than at their upper ends,

and preferably the peripheral walls of the 0011-,

tainers 5 diverge downward slightly away from the circumferential wall of the basket 4. Thus, when the containers swing outward about the .;hinge l3 at the upper edges of the diametrical walls 12 of the containers, the lower margins of the peripheral walls of the containers will swin outward and frictionally contact the circumferential wall of the rotating basket. There will ,remain a clearance or space between these walls above the area ofcontact through which the wateris thrown.

As here shown, the bottoms Id of the containers are provided with rollers it which rest upon the bottom of the basket i. The rollers are usually casters and are located in depressions IS in the bottoms of the containers. These rollers or casters are primarily for transporting the extractors as trucks along the floor to and ,from .the extractor. The containers may be lifted out of the basket, or loaded into the basket,

by means of a suitable overhead appliance including a hook I? which may be inserted throu the open tops of the containers and through aligned holes it in the upper margins of the walls of the containers. The tapering of the peripheral walls of the containers facilitates the centering of the containers with the basket during lowering of the containers into the basket.

As here illustrated, the means for restraining the pivotal movement of the containers consist oi a pair of springs I9 mounted on studs 20 eX- tending through the confronting diametrical walls of the containers and thrusting at their inner ends against said Walls and at their outer ends against heads 2! on the studs. The ends of the studs are covered by suitable housings 22. There is a stud and spring on each side of the axis of rotation.

The bottoms of the containers are also hinged at 23 to the lower edges of the diametrical Walls of the containers. The bottoms are normally held from movement about their hinges by latches 26. When the containers are lifted out of the basket and transported to a point of delivery, the latches are unlatched and the bot-v toms l i drop, permitting the load to dump, or discharge.

The spindle 8 is here shown as actuated by belts 25 running over pulleys 26, 21, on the spindle i5, and on the shaft 29 of a motor as. The motor is suitably mounted on the frame 2.

The cylindrical wall of the frame or curb 2 is provided with a cover 52! hinged at 32 within a housing 323 for mechanism, not shown, which locks the cover closed and permits opening thereof only when the rotation of the basket 3 is stopped.

In operation, when the motor is started and the basket 4 rotated, the containers 5 are also rotated due to the engagement of the rollers l5 with the bottom of the basket 4. As the speed increases, the containers shift radially outwardly about the axes of their hinge 13, bringing the peripheral walls of the containers in frictional contact with the circumferential wall of the basket 4, so that the high speed centrifugal force is transmitted to the containers through this frictional contact. The springs I9 permit the outward shifting of the containers under the centrifugal force, but prevent undue displacement, or spreading apart, or splitting of the containers.

What we claim is:

l. A centrifugal extractor comprising a stationary frame having an upright circumferential curb wall, a power-rotatable, perforated, cylindrical basket mounted in the frame with its peripheral wall spaced from the upright curb wall of the frame, containers in the basket, the containers being complemental segments of 2. cylinder, the peripheral walls of the segments being concentric with the cylindrical Wall of the basket and being perforated, the containers being mounted in the basket to rest on the bottom of the basket and to shift radially to frictionally engage the peripheral walls of the containers with the peripheral wall of the basket, and spring means connecting the containers to yieldingly resist outward shifting movement under the centrifugal force of the rotating basket, the peripheral walls of the containers being normally spaced from the inner face of the wall of the basket and coacting, when the containers are thrown outward under the centrifugal force,

4 friction clutch fashion, with the, inner face of the cylindrical wall of the basket.

2. A centrifugal extractor comprising a stationary frame having an upright circumferential curb wall, a power rotatable, perforated, cylindrical basket mounted in the frame with its 1 6* ripheral wail spaced from the upright curb wall of the frame, containers in the basket, the containers being complemental segments of 2, cyllnder, the peripheral walls of the segments being concentric with the cylindrical wall of the basket and being perforated, the containers beins mounted in the basket,i-the containers resting on the bottom of the basket and having diametrically extending walls opposed to each other, the containers being hinged together at the upper edges of the diametrical Walls and mounted in the basket to shift outwardly about the axis of the hinge, the peripheral Walls of the containers being spaced from and concentric with the inner wall of the basket and thrusting against the inner face of the wall of the basket friction clutch fashion under the action of the centrifugal force during the rotation of the basket and the containers therein, and the movement of the containers outward about the axis of the hinge, and spring connections connecting the diametrical walls of the containers to yicldingly resist outward radial movement of the containers about the axis of the hinge.

3. A centrifugal extractor comprising a stationary frame having an upright circumferential curb wall, a power rotatable, perforated, cylindrical basket mounted in the frame with its peripheral wall spaced from the upright curb wall of the frame, containers in the basket, the containers being complemental segments of a cylinder, the peripheral walls of the segments being concentric with the cylindrical Wall of the basket and being 7 perforated, the containers being mounted in the basket, the containers resting on the bottom of the basket and having diametrically extending walls opposed to each other, the containers being hinged together at the upper edges of the diametrical walls and mounted in the basket to shift outwardly about the, axis of the hinge, the peripheral walls of the containers being spaced from and concentric with the inner wall of the basket and thrusting against the inner face of the wall of the basket friction clutch fashion under the action of the centrifugal force during the rotation of the basket and the containers therein, and the movement of the containers outward about the axis of the hinge, and spring connections connecting the diametrical walls of the containers to yieldingly resist outward radial movement of the 0011- tainers about the axis of the hinge, the walls of the containers which are spaced from the inner face of the wall of the basket being normally tapered inward so that upon movement of the containers about the axis of the hinge, said tapered walls engage the lower portions of the opposing concentric wall of the basket, friction clutch fashion. JOSEPH B. SANDO.

WALLACE F. GAYRING.

References Cited in the file Of this patent UNITED STATES, PATENTS Fields Mar. 22, 1949 

